she's part of "the angel band project," set up by teresa butz's best friends, and their music and concertsp other survivors get the care they need. jennifer says this work-- and, eli sanders book telling her story-- have helped honor the memory of teresa. >> through eli, in the book she got to be very alive. to have that relationship and that joy that i had, to have that told in his voice, like the way he told it-- it's so beautiful, like she still gets to be, you know, alive. >> woodruff: again, the book is called "while the city slept-- a love lost to violence, and a young man's descent into madness" by eli sanders. we will continue our "broken justice" series tomorrow on the newshour with a conversation with deputy attorney general sally yates about the challenges the newly released face after leaving prison. >> sreenivasan: in the latest newshour bookshelf conversation, a look into a potential new treatment for autism. trans-cranial magnetic stimulation, or t.m.s., can be used to diagnose damage from brain injuries and disorders. but a new study investigates whether the therapy can hel